This 1967 experiment in modular architecture was designed to be a new model for urban living.

You'd never know the houses at 23-24 Leinster Gardens were fakes—until you see the train tracks on the other side.

Eight "Guardians of Health" protect this art deco water tower from pollutants and bacteria.

The peaceful space is adorned by paintings by the famed abstract artist Mark Rothko.

The neon signs from Las Vegas' past find their final resting place at this unusual graveyard.

A 300-yard long natural tunnel runs through a ridge deep in the Appalachian Mountains.

A sacred site for Native Americans surveyed by George Washington and owned by both King George III and Thomas Jefferson.

Mennes invented the tags we all place annually upon our license plates, and his story is told frankly and in full upon his headstone.

Only place outside China and India where two overhead DC power lines cross.

This sky-high radio mast is formerly the tallest man-made structure in the world.

A lonely house representing railroad history tells the stories of those who rode the rails.

This simple badlands butte is the highest point in North Dakota and may be the only high point to charge admission.

The oldest still-existing mosque in the United States sits in a remote prairie in North Dakota.

On the windswept Dakota plains there is a memorial to circus workers who were struck down by lightning.

This iconic science fiction house still looks like something from the future.

Despite being one of the most photographed vistas in the Rockies these twin peaks are rightfully known as the "Deadly Bells."

A nursery specializing in strange and beautiful succulents and cacti.

A mapping error in the 19th century made loggers think this section of the forest was underwater.